結果

問題 No.308 素数は通れません
ユーザー りあんりあん
提出日時 2015-12-02 00:39:58
言語 C#(csc)
(csc 3.9.0)
結果
WA  
実行時間 -
コード長 5,568 bytes
コンパイル時間 3,846 ms
コンパイル使用メモリ 116,720 KB
実行使用メモリ 30,860 KB
最終ジャッジ日時 2024-09-14 07:30:01
合計ジャッジ時間 10,820 ms
ジャッジサーバーID
(参考情報)
judge2 / judge6
このコードへのチャレンジ
(要ログイン)

テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 30 ms
26,396 KB
testcase_01 AC 30 ms
24,196 KB
testcase_02 AC 29 ms
26,488 KB
testcase_03 AC 29 ms
24,320 KB
testcase_04 AC 29 ms
24,620 KB
testcase_05 AC 30 ms
26,492 KB
testcase_06 AC 30 ms
26,084 KB
testcase_07 AC 30 ms
24,432 KB
testcase_08 AC 29 ms
22,448 KB
testcase_09 AC 30 ms
24,324 KB
testcase_10 AC 30 ms
24,552 KB
testcase_11 AC 30 ms
22,448 KB
testcase_12 AC 29 ms
22,456 KB
testcase_13 AC 30 ms
24,320 KB
testcase_14 AC 30 ms
24,492 KB
testcase_15 AC 30 ms
24,428 KB
testcase_16 AC 29 ms
24,452 KB
testcase_17 AC 29 ms
24,200 KB
testcase_18 AC 30 ms
24,188 KB
testcase_19 AC 30 ms
26,480 KB
testcase_20 AC 31 ms
24,236 KB
testcase_21 AC 29 ms
24,304 KB
testcase_22 AC 31 ms
26,356 KB
testcase_23 AC 29 ms
24,324 KB
testcase_24 AC 29 ms
24,068 KB
testcase_25 AC 29 ms
24,196 KB
testcase_26 AC 31 ms
24,452 KB
testcase_27 AC 30 ms
26,356 KB
testcase_28 AC 30 ms
22,072 KB
testcase_29 AC 30 ms
24,372 KB
testcase_30 AC 30 ms
26,492 KB
testcase_31 AC 30 ms
24,196 KB
testcase_32 AC 30 ms
22,200 KB
testcase_33 AC 30 ms
26,480 KB
testcase_34 AC 29 ms
24,616 KB
testcase_35 AC 30 ms
24,432 KB
testcase_36 AC 30 ms
26,220 KB
testcase_37 AC 30 ms
24,456 KB
testcase_38 AC 30 ms
24,176 KB
testcase_39 AC 29 ms
24,492 KB
testcase_40 AC 30 ms
23,936 KB
testcase_41 AC 30 ms
24,500 KB
testcase_42 AC 30 ms
24,500 KB
testcase_43 AC 30 ms
26,352 KB
testcase_44 AC 30 ms
24,324 KB
testcase_45 AC 30 ms
24,200 KB
testcase_46 AC 29 ms
24,200 KB
testcase_47 AC 30 ms
24,452 KB
testcase_48 AC 30 ms
26,364 KB
testcase_49 AC 30 ms
26,624 KB
testcase_50 AC 29 ms
24,064 KB
testcase_51 AC 30 ms
24,456 KB
testcase_52 AC 30 ms
24,060 KB
testcase_53 AC 30 ms
26,092 KB
testcase_54 AC 29 ms
22,324 KB
testcase_55 AC 30 ms
24,240 KB
testcase_56 AC 31 ms
24,368 KB
testcase_57 AC 30 ms
22,192 KB
testcase_58 AC 29 ms
24,440 KB
testcase_59 AC 30 ms
24,176 KB
testcase_60 AC 30 ms
24,320 KB
testcase_61 AC 30 ms
24,452 KB
testcase_62 AC 30 ms
24,328 KB
testcase_63 AC 31 ms
24,320 KB
testcase_64 AC 31 ms
24,444 KB
testcase_65 AC 30 ms
24,320 KB
testcase_66 AC 30 ms
24,196 KB
testcase_67 AC 30 ms
22,072 KB
testcase_68 AC 31 ms
24,500 KB
testcase_69 AC 31 ms
26,492 KB
testcase_70 AC 30 ms
24,176 KB
testcase_71 AC 30 ms
24,196 KB
testcase_72 AC 30 ms
24,184 KB
testcase_73 AC 30 ms
24,192 KB
testcase_74 AC 30 ms
24,444 KB
testcase_75 AC 30 ms
23,924 KB
testcase_76 AC 33 ms
24,052 KB
testcase_77 AC 29 ms
22,328 KB
testcase_78 AC 29 ms
22,324 KB
testcase_79 AC 29 ms
24,320 KB
testcase_80 AC 162 ms
24,456 KB
testcase_81 AC 217 ms
24,580 KB
testcase_82 AC 30 ms
26,236 KB
testcase_83 AC 31 ms
24,068 KB
testcase_84 AC 216 ms
22,320 KB
testcase_85 AC 31 ms
24,364 KB
testcase_86 AC 337 ms
26,864 KB
testcase_87 AC 332 ms
22,664 KB
testcase_88 AC 30 ms
24,320 KB
testcase_89 AC 31 ms
26,236 KB
testcase_90 AC 713 ms
26,508 KB
testcase_91 AC 31 ms
26,232 KB
testcase_92 AC 30 ms
26,356 KB
testcase_93 AC 30 ms
26,348 KB
testcase_94 AC 30 ms
24,324 KB
testcase_95 AC 30 ms
24,324 KB
testcase_96 AC 31 ms
24,316 KB
testcase_97 AC 30 ms
24,572 KB
testcase_98 AC 30 ms
24,444 KB
testcase_99 WA -
testcase_100 WA -
testcase_101 AC 868 ms
30,860 KB
testcase_102 AC 30 ms
24,064 KB
testcase_103 AC 31 ms
24,176 KB
testcase_104 AC 30 ms
24,320 KB
testcase_105 AC 30 ms
24,580 KB
testcase_106 AC 31 ms
26,228 KB
権限があれば一括ダウンロードができます
コンパイルメッセージ
Microsoft (R) Visual C# Compiler version 3.9.0-6.21124.20 (db94f4cc)
Copyright (C) Microsoft Corporation. All rights reserved.

ソースコード

diff #

using System;
using System.Collections.Generic;
using System.Linq;
using System.IO;
using System.Text;
using System.Numerics;

namespace Solver
{
    class Program
    {
        const int M = 1000000007;
        const double eps = 1e-9;
        static void Main()
        {
            var sw = new System.IO.StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false };
            var sc = new Scan();
            var s = sc.Str;
            var n = BigInteger.Parse(s);
            if (n < 26)
            {
                var p = int.Parse(s);
                switch (p)
                {
                    case 8:
                    case 9:
                    case 10:
                    case 15:
                    case 16:
                    case 22:
                        Console.WriteLine(7);
                        return;
                    case 18:
                        Console.WriteLine(8);
                        return;
                    case 21:
                        Console.WriteLine(19);
                        return;
                    case 25:
                        Console.WriteLine(23);
                        return;
                }
                Console.WriteLine(p - 1);
                return;
            }
            if (n % 8 == 1 && isprime(n - 8))
            {
                Console.WriteLine(14);
                return;
            }
            sw.WriteLine(8);
            sw.Flush();
        }
        static bool isprime(BigInteger n)
        {
            if (n == 1) return false;
            int m = 3000000;
            if (n <= m)
                m = (int)n - 1;
            for (int i = 2; i <= m; i++)
            {
                if (n % i == 0)
                    return false;
            }
            long b = m;
            if (b * b < n) return primesub(n);

            return true;
        }
        static bool primesub(BigInteger n)
        {
            var p = new BigInteger(Math.Sqrt(double.Parse(n.ToString())));
            for (var i = p - 1000000; i < p + 10; i++)
            {
                if (n % i == 0)
                    return false;
            }
            return true;
        }

        static string strsort(string s)
        {
            var c = s.ToCharArray();
            Array.Sort(c);
            return string.Join("", c);
        }
        static string strswap(string s, int i, int j)
        {
            var c = s.ToCharArray();
            c[i] = s[j];
            c[j] = s[i];
            return string.Join("", c);
        }

        static T[] copy<T>(T[] a)
        {
            var ret = new T[a.Length];
            for (int i = 0; i < a.Length; i++) ret[i] = a[i];
            return ret;
        }
    }
    class Scan
    {
        public int Int { get { return int.Parse(Console.ReadLine().Trim()); } }
        public long Long { get { return long.Parse(Console.ReadLine().Trim()); } }
        public string Str { get { return Console.ReadLine().Trim(); } }
        public int[] IntArr { get { return Console.ReadLine().Trim().Split().Select(int.Parse).ToArray(); } }
        public int[] IntArrWithSep(char sep) { return Console.ReadLine().Trim().Split(sep).Select(int.Parse).ToArray(); }
        public long[] LongArr { get { return Console.ReadLine().Trim().Split().Select(long.Parse).ToArray(); } }
        public double[] DoubleArr { get { return Console.ReadLine().Split().Select(double.Parse).ToArray(); } }
        public string[] StrArr { get { return Console.ReadLine().Trim().Split(); } }
        public List<int> IntList { get { return Console.ReadLine().Trim().Split().Select(int.Parse).ToList(); } }
        public List<long> LongList { get { return Console.ReadLine().Trim().Split().Select(long.Parse).ToList(); } }
        public void Multi(out int a, out int b) { var arr = IntArr; a = arr[0]; b = arr[1]; }
        public void Multi(out int a, out int b, out int c) { var arr = IntArr; a = arr[0]; b = arr[1]; c = arr[2]; }
        public void Multi(out int a, out int b, out int c, out int d) { var arr = IntArr; a = arr[0]; b = arr[1]; c = arr[2]; d = arr[3]; }
        public void Multi(out int a, out string b) { var arr = StrArr; a = int.Parse(arr[0]); b = arr[1]; }
        public void Multi(out int a, out int b, out string c) { var arr = StrArr; a = int.Parse(arr[0]); b = int.Parse(arr[1]); c = arr[2]; }
        public void Multi(out int a, out char b) { var arr = StrArr; a = int.Parse(arr[0]); b = arr[1][0]; }
        public void Multi(out char a, out int b) { var arr = StrArr; a = arr[0][0]; b = int.Parse(arr[1]); }
        public void Multi(out long a, out long b) { var arr = LongArr; a = arr[0]; b = arr[1]; }
        public void Multi(out long a, out int b) { var arr = LongArr; a = arr[0]; b = (int)arr[1]; }
        public void Multi(out string a, out string b) { var arr = StrArr; a = arr[0]; b = arr[1]; }
    }
    class mymath
    {
        int M;
        const double eps = 1e-9;
        public mymath(int M) { this.M = M; }
        public long pow(long a, long b)
        {
            if (b == 0) return 1;
            if (b == 1) return a % M;

            long t = pow(a, b / 2);

            if ((b & 1) == 0) return t * t % M;
            else return t * t % M * a % M;
        }
        public long gcd(long a, long b)
        {
            while (b != 0)
            {
                var t = a % b;
                a = b;
                b = t;
            }
            return a;
        }
        public long lcm(int a, int b) { return (a * b) / gcd(a, b); }
    }
}
0